SafeStat

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SafeStat
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What is SafeStat?

• SafeStat is a data-driven analysis system that
  determines the current relative safety status of
  individual motor carriers
• SafeStat was developed at the Volpe Center for
  the Federal Motor Carrier Safety Administration
  (FMCSA)
• Data used are maintained and managed at the
  Federal level by the FMCSA

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What Does SafeStat Do?

• Evaluates and Scores Individual Motor Carriers in
  Four Safety Evaluation Areas (SEAs)
• 1. Accident
• 2. Driver
• 3. Vehicle
• 4. Safety Management

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SafeStat Design

• Event and exposure data are used to calculate
  normalized measures for each carrier
• Measures are ranked and assigned percentile
  values (Indicators) from 0-100-with 100 being
  highest or worst
• Indicators are combined into SEA values
• SEA values are weighted and summed to derive the
  SafeStat score

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SafeStat Hierarchy and Features
Features
Features
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SafeStat Overview
MOTOR CARRIER SAFESTAT SCORE
Data Sources by Carrier
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How are SafeStat scores calculated?
1. Motor Carrier Safety Data
Compliance Reviews
Crashes
Moving Violations
Roadside Inspections
Carrier Registration
Closed Enforcement Cases
2. Algorithm Calculates Safety Status of
Carrier
3. Access SafeStat results for
individual carriers via AI Online.
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Uses of SafeStat

• FMCSA Compliance Reviews (CRs)
• Semiannually identifies and prioritizes carriers
  for on-site
• FMCSA compliance reviews

• PRISM Program
• Identifies and monitors poorly performing
  carriers for the
• PRISM Federal/State safety improvement process
  (MCSIP)

• Inspection Selection System (ISS)
• Supports recommendations of evaluated carriers
• drivers and vehicles for roadside inspections

• AI Online (www.ai.volpe.dot.gov)
• Makes SafeStat results available via the internet
  to industry and the public to promote safety
  awareness and self-improvement

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SafeStat Data

• At the foundation of SafeStat are safety event
  data and exposure data
• Carrier specific safety event data reflect the
  carriers safety compliance and performance and
  include
• State Reported Crashes (last 30 mos.)
• Recordable Crashes from CRs (last 12 mos. CRs)
• Roadside Inspection Violations (last 30 mos.)
• Moving Violations (last 30 mos.)
• Compliance Review Violations (last 18 mos. CRs)
• Closed Enforcement Cases (last 6 years)
• Exposure data normalize a carriers safety event
  data
• Number of drivers/vehicles and VMT
• Number of inspections

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SafeStat Categoriesfor Scored Carriers
SafeStat evaluated carriers are assigned to
Categories (A-G) based on their SafeStat Scores
and SEA Values
SafeStat Categories for Scored Carriers
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Single-SEA SafeStat Categories
Categories of carriers deficient in one SEA (SEA
Value of 75 or higher)
SafeStat Categories for Carriers with One SEA
Value
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SafeStat Effectiveness Study

• A study was conducted to confirm SafeStat
  effectiveness by comparing post-run crash rates
  for scored vs. unscored carriers
• (1) SafeStat was run 18 months in the past with
  data available at that time to identify and score
  carriers
• (2) Carriers with sufficient data were assigned
  to 3 groups based on the SafeStat run results
  At-Risk (Categories AB), Other Scored (Category
  C) and unscored
• (3) Post-run crash rates for each group were
  observed and compared

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Effectiveness Study Results
Carriers identified by SafeStat have higher crash
rates than carriers not identified by SafeStat